The problem
Several platforms could observe the same lead and each used different identifiers. Without a shared submission identity, the team risked duplicate conversions, incomplete matching and CRM records that could not be reconciled with advertising reports.
My contribution
I designed the event contract, customer-data timing, click-identifier capture and deduplication approach across the browser, server layer, advertising platforms and CRM handoff.
I have kept the organisation, product and people private. I also left out exact figures and internal details that could identify the work. The status above tells you how far the implementation actually went.